python小练习

import os

response = urllib.request.urlopen("http://pvp.qq.com/web201605/js/herolist.json")

hero_json = json.loads(response.read())
hero_num = len(hero_json)

# 文件夹不存在则创建
save_dir = 'C:heroskin\'
if not os.path.exists(save_dir):
    os.mkdir(save_dir)

for i in range(hero_num):
    # 获取英雄皮肤列表
    # print(hero_json[i]['ename'])
    # time.sleep(600)

    skin_names =hero_json[i]['skin_name'].split('|')[0]

    for cnt in range(len(skin_names)):
        save_file_name = str(save_dir) + str(i) + '.jpg'
        skin_url = 'http://game.gtimg.cn/images/yxzj/img201606/skin/hero-info/'+str(hero_json[i]['ename'])+ '/' +str(hero_json[i]['ename'])+'-bigskin-' + str(cnt+1) +'.jpg'

        if not os.path.exists(save_file_name):
            urllib.request.urlretrieve(skin_url, save_file_name)